Several weeks ago, we interviewed Arvind Ethan David, producer for the upcoming BBC America take on Dirk Gently’s Holistic Detective Agency. The first trailer was revealed at the San Diego Comic Con, and you can check it out, after the jump!

BBC America has released the latest trailer for Orphan Black’s fourth season via youtube. Sarah, reluctantly return home from her Icelandic hideout to track down an elusive and mysterious ally tied to the clone who started it all — Beth Childs. Sarah will follow Beth’s footsteps into a dangerous relationship with a potent new enemy, heading in a horrifying new direction. Under constant pressure to protect the sisterhood and keep everyone safe, Sarah’s old habits begin to resurface. As the close-knit sisters are pulled in disparate directions, Sarah finds herself estranged from the loving relationships that changed her for the better.